RCF MB 15N351

15" · 8 Ω · 650 W · 101.2 dB · datasheet ↗

Thiele-Small parameters

Nominal size	15"
Impedance	8 Ω
Fs	42 Hz
Qts	0.226
Qes	0.24
Qms	4
Vas	191 L
Sd	855 cm²
Xmax	6 mm
Re	5.6 Ω
Bl	21.8 T·m
Mms	77 g
Pe	650 W
Sensitivity	101.2 dB

Alignment hint

EBP	175 · ported
Sealed Vb (Qtc ≈ 0.71)	≈ 21.7 L

EBP > 100: favours a ported (bass-reflex) alignment.

Rules of thumb from T/S parameters only. Verify against a real simulation before cutting wood.

Substitute candidates

Driver	Fs (Hz)	Qts	Vas (L)	Xmax (mm)	Sens (dB)	Fit	Notes	Compare
RCF CX 15N351	42 =	0.226 =	191 =	5.3 -0.7	101.2 =	close	450 W vs 650 W: lower power handling · Xmax 5.3 mm < 6 mm: lower excursion-limited SPL	+
Radian 5215B oem2	42 =	0.247 +0.02	197 +6	5.5 -0.5	100.6 -0.6	close	Xmax 5.5 mm < 6 mm: lower excursion-limited SPL	+
Radian 5215B oem3	42 =	0.247 +0.02	197 +6	5.5 -0.5	100.6 -0.6	close	Xmax 5.5 mm < 6 mm: lower excursion-limited SPL	+
B&C 15 NDL 76	37 -5	0.228 =	195 +4	6 =	99.9 -1.3	close	500 W vs 650 W: lower power handling	+
Radian 5215B NEO	44 +2	0.232 +0.01	175 -16	5.5 -0.5	100.8 -0.4	close	Xmax 5.5 mm < 6 mm: lower excursion-limited SPL	+
Beyma 15"P80Nd	39 -3	0.21 -0.02	184 -7	7.5 +1.5	101 -0.2	close		+
MC Kenzie C15.400BS	40 -2	0.219 -0.01	215 +24	5.4 -0.6	101 -0.2	close	400 W vs 650 W: lower power handling · Xmax 5.4 mm < 6 mm: lower excursion-limited SPL	+
PHL Audio 5030	40 -2	0.236 +0.01	180 -11	5.4 -0.6	100.2 -1	close	500 W vs 650 W: lower power handling · Xmax 5.4 mm < 6 mm: lower excursion-limited SPL	+
Beyma 15P80/FE	41 -1	0.236 +0.01	159.3 -31.7	6.6 +0.6	100.6 -0.6	close		+
B&C 15NDL76	37 -5	0.22 -0.01	195 +4	7 +1	99.5 -1.7	close	500 W vs 650 W: lower power handling	+

Compare the closest 3 against the MB 15N351 →

Ranked on parameter similarity only (Qts, Fs, Vas, Xmax, sensitivity). Same nominal size required. A hint, not a simulation, model the swap before cutting or buying.

Used in enclosures (0)

No enclosure in the catalog uses this driver yet.